Electric grinding machine



FIG. 1 is a front perspective view of an electric grinding machine showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is an enlarged view of portion 8 of FIG. 1.

The evenly broken lines in the drawings illustrate portions of the electric grinding machine that form no part of the claim. 

CLAIM The ornamental design for an electric grinding machine, as shown and described. 